报告题目：Host-Guest Chemistry of Molecular Nanoparticles

报告人：Chien-Lung Wang（National Chiao Tung University, Hsinchu, Taiwan）

报告时间：2018年1月9日（周二）上午10:00
报告地点：独墅湖校区911号楼401报告室

欢迎广大师生踊跃参加。

报告摘要：

Molecular nanoparticles (MNPs) such as POSS and C₆₀ derivatives are well-defined nano-objects that are widely used as the building blocks of topologically complex giant molecules.¹ Constructed with a spherical core and multiple peripheral functionalities, MNPs deliver useful functions and form unique phases.² Although normally considered as rigid nanospheres, MNPs have many possible molecular shapes, because their flexible peripheral units have large conformational freedom. In this presentation, the topology and self-assembly behaviors of a fullerene based MNP and a POSS based MNP will be first discussed. Microscopic and diffraction characterization results show that the strength of intra-molecular interaction and symmetry of the MNP are crucial to the shape and self-assembly behaviors of the MNPs.³

  After knowing the topological behaviors of the C₆₀ and POSS MNPs, conjugated and amphiphilic functional groups are introduced to the eight vertices of a POSS core. The POSS core and the eight peripheral functional groups together create two cavities within the novel POSS MNPs. The host-guest chemistry and potential developments of the two hollow POSS MNPs will also be discussed in the presentation.

Reference:

1.W.-B. Zhang, X. Yu, C.-L. Wang, H.-J. Sun, I. F. Hsieh, Y. Li, X.-H. Dong, K. Yue, R. Van Horn, S. Z. D. Cheng, Molecular Nanoparticles Are Unique Elements for Macromolecular Science: From “Nanoatoms” to Giant Molecules, Macromolecules2014, 47, 1221.

2.Nierengarten and coworkers, Chem. Rec. 2015, 15, 31; Angew. Chem. Int. Ed. 2011, 50, 2364; J. Am. Chem. Soc. 2012, 134, 988-998.

3.S.-L. Wu, C.-Y. Hong, K.-Y. Wu, S.-T. Lan, C.-T. Hsieh, H.-L. Chen, C.-L. Wang “Conformational Preferences and the Phase Stability of Fullerene Hexa-adducts” Chem. Asian J.2016, 11, 2011-201

报告人简介：

Chien-Lung Wang received his Ph.D. degree in Polymer Science at theUniversity of Akron in 2011. His research topic was synthesis andcharacterization of C₆₀−porphyrin derivatives for enhanced photovoltaicperformance through efficient charge generation and transport.After spending six months as a postdoctoral assistant in Prof. XiongGong’s research group at the Department of Polymer Engineering, theUniversity of Akron, he joined the Department of Applied Chemistry,National Chiao Tung University, in Taiwan as an Assistant Professor.His current research focuses are on the phase transitions andsupramolecular structures of conjugated molecules and self-assembledfunctional materials for organic optoelectronics.